I've never used packing cubes before, but I decided to finally give them a try. I went through my packing list and decided how I thought I might group all the stuff I travel with to get an idea which cubes to buy. I went with this set from ebags and they arrived today.
https://www.ebags.com/product/ebags/ultralight-packing-cubes-super-packer-5pc-set/309406?productid=10408194&cat=packing-aids&country=US¤cy=USD&ebcpkey=keywords&couponid=94790994&sourceid=ADWPRODEBAGS&adtype=pla&gclid=Cj0KCQjwocPnBRDFARIsAJJcf94NHlM_OLF9iRtGyBu7O8SFBCpMflLoGkORQyIgxXL21CCvIFY1sEQaAgjIEALw_wcB
They seem well made with good quality zippers. after removing tags, labels, etc. I weighed the entire set at 9.3 oz. I'm going to pack them as planned, put them in my bag and see how it goes. If it looks worthwhile I'll see if my wife wants to try a set too. I know lots of people use and love packing cubes. I've just never really been motivated to give them a try. We've got trips planned this summer and fall so we'll see how it goes.